So, out of all your tablets, which one has been the success then?
Archos, a small French company, has reported record sales this year after their android 2.2 based 1Ghz gen8 tablets proved more popular than even they anticipated. My 8th gen Archos 43 has replaced my 4th gen iPod Touch for daily use. Its larger screen and more useful apps make it more valuable. No surprise, really, given Apple's relative inexperience at touchscreen devices.

My Archos 70it was my sofa companion (over the iPad2) until I picked up the Acer Iconia Tab. Acer and Asus are also surprised by the popularity of these Tegra-2 tablets running HoneyComb. Demand for the ASUS is still exceeding their production capacity.
Again, specs, hardware and price alone mean nothing without apps and a quality, simple to use OS.
Your assumption is that android doesn't have apps, and isn't a quality, simple to use OS. I'll guess since your user name is "Mac.World" that you haven't used it on the tablets I mention. iOS is simple, I agree. You tap on icons. Guess what? You tap on icons in Android too!
So, you are saying...? I disagree. ... Sorry, but that is yet another reason why Android based tablets are failing.
The error in your thinking is in believing that android tablets are failing, as if they are one product from one company. The fact is that while many android tablets you can buy today won't be in production next year, there are new tablets (like the Asus Transformer and Acer Iconia) that WILL be updated and
are succeeding in the market because they will do anything an iPad 2 can do, as well as it does it, and for less money than an iPad 2 costs. If this ASUS or ACER or Samsung tablet doesn't sell well enough to make a profit they'll simply come out with a better one. In the mean time HTC and LG and DELL and Barnes & Noble and Amazon and Archos and a dozen other companies will be taking a shot at that same market. B&N's Nook Color has outsold everyone's estimates. Not because it is a great e-reader, but because it is great hardware that was easily hacked to run Android apps.
You won't believe it, of course. I suggest revisiting this thread in year. Time will tell if android tablets are dead and gone by then, or a larger total market for devices and apps than the iPad is and has.
4D